<template>
  <div id="report">
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图区域 -->
    <el-card>
      <!-- 2. 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 800px; height: 400px"></div>
    </el-card>
  </div>
</template>
<script>
// 1. 导入 scharts
import echarts from "echarts";
import _ from "lodash"
export default {
  data() {
    return {
        // 需要合并的数据
        options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      },};
  },
  created() {},
  // 此时，页面上的元素已经被渲染完毕了
  async mounted() {
    // 3. 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById("main"));

    let {data: res} = await this.axios.get("reports/type/1")
    if(res.meta.status !== 200){
        return this.message.error("获取数据失败")
    }
    // 4. 准备数据和配置项
    let result = _.merge(res.data, this.options)
    // 5. 展示数据
    myChart.setOption(result)
  },
  methods: {},
};
</script>